Recognised as Colour

#1251AC

#1251AC
Blue
Dark
Nearest: Dark slateblue

#1251AC is a blue with RGB values 18, 81, 172 and HSL 215°, 81%, 37%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1251AC#1251AC

HEX#1251AC

RGBrgb(18, 81, 172)

RGB (0–1)0.0706, 0.3176, 0.6745

RGB percentages7.1%, 31.8%, 67.5%

HSLhsl(215.5, 81.1%, 37.3%)

HSV / HSBhsv(215.5, 89.5%, 67.5%)

CMYK89.5%, 52.9%, 0%, 32.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,200,556

CSS custom property--colour: #1251AC;

Brightness & contrast

Relative luminance0.08992WCAG 2.x, 0 is black and 1 is white

Perceived brightness85.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.5:1

Contrast with white7.5:1WCAG normal text: AAA

Contrast with black2.8:1WCAG normal text: Fail

Greyscale equivalent#4A4A4A

Inverted#EDAE53

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0A5CAFno red cones; affects about 1% of men; ΔE 8.1 from the original

Deuteranopia#004EAAno green cones; the most common form, about 1% of men; ΔE 1.6 from the original

Tritanopia#006776no blue cones; rare, and affects men and women equally; ΔE 52.9 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text7.5:1WCAG large text: AAA

Contrast with black, large text2.8:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 15.8 Royal blue · ΔE 18.9 Slate blue · ΔE 21.6 Midnight blue · ΔE 25.3 Dodgerblue · ΔE 26.2 Rebecca purple · ΔE 27

Nearest named CSS colourDark slateblue (#483D8B)ΔE 15.76, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#AC6D12

Analogous#129EAC, #2012AC

Triadic#AC1251, #51AC12

Split complementary#AC2012, #9EAC12

Tetradic#AC129E, #AC6D12, #12AC20

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#96BCF4

Lighter +30%#689FEF

Lighter +20%#3A82EA

Lighter +10%#1767DA

Darker −10%#0D3B7E

Darker −20%#082650

Darker −30%#041021

Darker −40%#000000

More saturated +25%#004EBE

Less saturated −25%#2A5594

Channel breakdown

R18

G81

B172

Red18 (7.1%)

Green81 (31.8%)

Blue172 (67.5%)

Hue215.45°

Saturation (HSL)81.05%

Lightness37.25%

Dominant channelBlue

Hex per channelR 12 · G 51 · B AC

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#1251AC

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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